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Information Technology Unknown Status software engineer

18 software engineer jobs found

CL
Mar 13, 2026  
SC Cleared Senior Software Engineer
Job Title: SC Cleared Senior Software Engineer Location: Farnborough, Malvern or Portsmouth Duration: 6 months with possible extension Rate: Up to £820 per day via an approved umbrella company Must be willing and eligible to go through the SC Clearance process Are you a talented and motivated Software Engineer with a passion for delivering innovative solutions? Our client, a reputable organisation supporting maritime test and evaluation facilities, is hiring for a Senior Software Engineer to join their dynamic engineering team. This is an exciting opportunity to work on modernising critical systems and contribute to cutting-edge projects in a collaborative environment. What you'll be doing: Supporting the maintenance and development of new systems to enhance maritime test and evaluation capabilities. Designing, developing, integrating, testing, and delivering complex real-time software solutions. Leading technical tasks and collaborating effectively with stakeholders,...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 11, 2026  
IAC - Orchestration Software Engineer - SC Cleared (Contract)
Our client, a prominent organisation within the Defence and Security sector, is seeking a highly skilled IAC - Orchestration Software Engineer with SC clearance to join their team on a contract basis. This role involves supporting the design, development, and validation of infrastructure automation components that underpin complex military and security systems. You will work at the forefront of automation technology, creating solutions that integrate hardware features and external APIs, ensuring reliable, repeatable deployments within critical environments. Key Responsibilities: * Design and develop automation modules using Python3, Ansible, Jenkins, Bash, and PowerShell, focusing on hardware components and external services. * Reverse engineer legacy applications and manual build instructions to craft dynamic, zero-touch automation packages. * Create high-quality, production-ready code aligned with industry standards and internal policies. * Utilise version control tools...
IR35 Status:
Unknown Status

CV-Library Corsham, Wiltshire Contractor
CL
Mar 11, 2026  
Embedded Software Engineer
Embedded SW Engineer - Cardiff One of our clients are gearing up for a major R&D project and are looking at a 3/6 month contract for an Embedded SW Specialist. We are looking to identify high-calibre Embedded Software/Firmware Contractors to support the development of custom hardware. Key Technical Requirements: * Embedded C/C++: Expert-level development for custom hardware platforms. * Hardware Bring-up: Experience working closely with R&D teams on new PCB designs. * Microcontrollers: Experience with STM32, NXP, or i.MX architectures (highly desirable). * Communication Protocols: CAN-bus, Modbus, or Ethernet-based industrial protocols. * Local Presence: Must be able to commute to Cardiff for hands-on hardware testing. Role is likely to be a 3 or 6 month contract. Please apply for more details
IR35 Status:
Unknown Status

CV-Library CF10, Cardiff, South Glamorgan Contractor
CL
Mar 06, 2026  
Embedded Ada Software Engineer
World Class Defence Organisation based in Bristol is currently looking to recruit 2x Embedded ADA Software Engineer subcontractors on an initial 12 month contract.  The role will likely be required to be onsite, but it can be worked on a 4-day week basis.   Essential - ADA, Background in safety critical software. Desirable - Linux, Doors, Dimensions, UML, Mascot etc.   Contract Duration: 12 Months initially and then ongoing. Hourly Rate: £68.00ph (Umbrella).   Overtime rate: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’   Embedded ADA Software Engineer Job Description: We work on technology that is at the forefront of European missile system design, delivering safe, secure, and reliable products to our customers. The System software department covers all aspects of command and control software (C2) for both land and maritime missile systems. We are expanding the Sea Viper and Sea Ceptor missile C2 team for the development of the next generation of...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Feb 21, 2026  
Software Engineer
Software Engineer (Java) SC Clearance Required Certain Advantage are hiring for a Software Engineer based in Portsmouth. This role is on an initial 12-month contract and is required to be onsite 3 days a week.   Your responsibilities: Contribute across the full software development lifecycle, including design, development, testing, and deployment. Design software solutions using UML/SysML and contribute to technical architecture within a microservices environment. Develop high-quality Java applications using Spring Boot, Spring Framework and related technologies. Implement and maintain RESTful web services over HTTPS within distributed systems. Write and maintain automated tests, ensuring quality and reliability are built into the solution from the outset. Participate in Agile ceremonies including sprint planning, estimation, reviews and retrospectives. Collaborate closely with team members and wider stakeholders to design, implement and test new product features. Contribute...
IR35 Status:
Unknown Status

CV-Library Portsmouth, UK Contractor
CL
Mar 15, 2026  
C++ Developer
Are you an experienced C++ Developer based in Belfast who is now looking for a new challenge? If so, this is the role for you.  Contract day rate on application Belfast About the Role: You’ll be an experienced C++ Developer and will be working on our core platform, which serves as a crucial component in the operations of top-tier companies. This role requires a skilled individual with a deep understanding of high-performance, low-latency applications, who can contribute effectively to a wider development team while demonstrating independence and ownership of key projects. In this role as a C++ Software Engineer, you will be responsible for designing, developing, and supporting high-throughput, low-latency applications. You will collaborate with a wider team to develop new features and maintain existing systems, while optimising performance and troubleshooting issues in a Linux/Unix environment. Additionally, you will apply strong coding practices to ensure the delivery of...
IR35 Status:
Unknown Status

CV-Library Belfast, UK Contractor
CL
Mar 12, 2026  
OpenShift Engineer (DV Cleared)
Our client, a global organisation, urgently require an experienced Software Engineer to undertake a long term contract, starting immediately. In order to be successful, you will have the following experience: Expert level experience with Red Hat OpenShift , including cluster administration and application Strong software engineering background (Python, Java, Go, C#, etc.) Experience building and deploying containerisation applications (Kubernetes, OpenShift Operators) Active DV Clearance is essential - the role cannot be carried out without this Within this role, you will be responsible for: Design, develop and deploy software solutions within secure OpenShift environments Build and maintain CI/CD pipelines compatible with restricted networks Engineer containerised applications using best practices for security, scalability, and maintainability Configure, administer, and optimise Red Hat OpenShift clusters Implement automation using tools such as Ansible, Helm, GitOps, or...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Mar 11, 2026  
Orchestration SW Engineer - Python3/Linux
Orchestration Software Engineer + 2 year contract working our of Corsham + Mainly remore working + £530 to £575 per day + SC Cleared Key Skills: + Python + Linux RHCA or RHCE We are looking for an Orchestration Software Engineer to help build and evolve a cutting-edge Infrastructure Automation platform supporting a major UK Defence programme. You'll be part of the Infrastructure Automation Engineering Service, designing and delivering robust, scalable automation solutions across complex enterprise environments. Translation: you'll turn messy, manual, legacy build processes into slick, repeatable, automated deployments. And yes, some of it will fight back. What You'll Be Doing Designing, developing, and validating infrastructure automation components for the NSoIT(D) platform. Writing production-grade automation using: Python 3 (core automation logic) Ansible (deployment) Jenkins (CI/CD & build pipelines) Bash & PowerShell (Linux & Windows automation)...
IR35 Status:
Unknown Status

CV-Library Corsham, Wiltshire Contractor
CL
Mar 11, 2026  
AI Engineer / Machine Learning Engineer
AI Engineer / Machine Learning Engineer. Excellent salary plus benefits. London / Hybrid / Remote. 6-12 Months Competitive daily rate. We’re now looking for a skilled AI Engineer / Machine Learning Engineer to support the next phase of AI-enabled digital service delivery. This is an opportunity to design, build and operate intelligent, production-grade AI systems that power digital services which are simpler, clearer and faster and that genuinely meet real user needs at national scale. You’ll play a key role in developing scalable machine learning and generative AI solutions, embedding them into secure cloud environments, and working closely with multidisciplinary teams to translate complex requirements into reliable, real-world AI capabilities. Key responsibilities include: * Designing, building and deploying scalable machine learning, deep learning and generative AI systems for production digital services. * Developing robust data pipelines, model training workflows...
IR35 Status:
Unknown Status

CV-Library W1, Marylebone High Street, Greater London Contractor
CL
Mar 11, 2026  
Embedded Systems Developer - (Contract)
Senior C#/.NET Engineer (Blazor) - Freelance Contract Location: Limerick, Ireland (Hybrid - 4 days onsite) Contract: 6 months (likely extension) Rate: c. €500 daily (dependant on experience) Start Date: (ASAP) About the role We're looking for a senior engineer strong in C#/.NET who enjoys building high-performance Blazor applications and reliable backend services. You'll be working on a self-hosted SPA built in Blazor with Redux.NET, plus workflow-heavy services using state machines (Stateless). If you like solving real system problems - not just building screens - this is a good one. Must-have 10+ years' commercial experience in software engineering Expert-level C#/.NET (async/await, CancellationToken, IAsyncEnumerable) Strong concurrency/threading knowledge and performance mindset ASP.NET Core (APIs, background services) Blazor (Server and/or WASM) State management experience (ideally Redux.NET) Workflow/state machine experience (ideally Stateless) Comfortable...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 15, 2026  
Requirements Engineer
Position Title: Requirements Engineer Duration: Contract Location: Solihull *Applicants MUST have proof of immediate, on-going and valid eligibility to work full time in the UK and travel within the EU.* Key Responsibilities Lead the setup and configuration of a new requirements management tool Define and implement a scalable requirements structure, including: Templates Unique ID conventions Naming standards Requirement categories Traceability models Manage the migration of legacy Excel-based requirements into the new system, ensuring high data quality and consistency Develop and deploy efficient workflows for: Requirement creation Reviews and approvals Change management Establish and maintain end-to-end traceability across: Electrical Software Controls Calibration Testing Support compliance with ISO 26262 and ASPICE, ensuring robust documentation and process governance Deliver training and onboarding for engineering teams, driving adoption of the new system Act as a...
IR35 Status:
Unknown Status

CV-Library Solihull, West Midlands Contractor
CL
Mar 12, 2026  
Azure Cloud Infrastructure Engineer Contract
Azure Cloud Infrastructure Engineer Contract Dublin 6-18 Months. My client a global leader in their space is in urgent need of a talented and experienced Azure Cloud Infrastructure Engineer to join their group on a contract basis for 6 months extending up to 18-24 months. You will work across technology to create the solution to align with my client cloud strategy. You will perform product design activities as required. You will design and implement new software solutions as part of their cloud enablement strategy, as well as maintain and enhance existing software. You will also ensure that code adheres to strict standards for accessibility, security, object-oriented practices, and performance, Write and conduct unit and integration tests Effectively function and communicate within a software development team consisting of developers, quality assurance, and project management members. You will be expected to actively participate in requirements, architecture reviews, and design...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 11, 2026  
Cloud Security Engineer
Cloud Security EngineerManchester | £620 per day | 3 days onsite 2 days remote | Until 30th July 2026 initially Our client is seeking a highly experienced Cloud Security Engineer to join their organisation on a long-term assignment. This role is ideal for an engineer who thrives in cloud‑native environments, enjoys solving complex real‑world problems, and wants to play a pivotal role in shaping the future of cloud security products and automation capabilities. The Role In this position, the Security Cloud Engineer will help drive the evolution of the organisation's cloud security platforms, influencing product direction and enhancing automation across escalations, remediations, and threat detection workflows. The role also involves applying CI/CD and DevOps knowledge to practical use cases across diverse business units, delivering secure, scalable cloud solutions. What You'll Be Doing Enhancing cloud infrastructure in line with strategy and approved budgets Contributing to the...
IR35 Status:
Unknown Status

CV-Library Manchester, Greater Manchester Contractor
CL
Mar 11, 2026  
Software Developer - IDMS - Tax - Contract - 6 months
Software Developer - IDMS - Tax - Contract Telford - 2 days per month onsite 6-month Contract SC Clearance is required for this role Hiring for an experienced Software Developer / Engineer to join the Tax Admin team, supporting critical enterprise tax systems. This role requires strong technical expertise across legacy and client-server technologies, with a focus on stability, enhancement, and continuous improvement of live services. Responsibilities include: * Design, develop and maintain PL/SQL and CA Gen applications * Support deployment activities and Implementation Management * Manage clone activities including restores, robotics coordination, testing, and patch upgrades * Troubleshoot performance issues and provide technical support * Collaborate across incident, problem, and continuous improvement forums * Participate in code reviews and promote engineering best practice * Drive batch performance improvements and reduce failure rates * Support audit and...
IR35 Status:
Unknown Status

CV-Library Telford, Shropshire Contractor
CL
Feb 11, 2026  
Electrical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit an Electrical Systems Engineer / Architect subcontractor on an initial 12 month contract. Your base site can either be from the companies Bristol, Stevenage or Bolton office.  This role will be a hybrid position – 3 days per week onsite and 2 days remote.      Hourly Rate: £60 - £85 (Umbrella).      Contract Duration: 6 Months initially and then ongoing and long-term thereafter.   Missile Electronic Architect Job Description:   Electrical Architects/Engineers are involved in all aspects of missile development, from the early concept studies to series production and in-service support. It’s an excellent opportunity for someone wanting to build on their engineering experience. Responsibilities: You will be responsible for the electrical architecture and requirements for missiles and/or their associated launcher systems with duties including: Specifying/determining system electrical requirements interface definitions...
IR35 Status:
Unknown Status

CV-Library Bolton, UK Contractor
CL
Feb 11, 2026  
Electrical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit an Electrical Systems Engineer / Architect subcontractor on an initial 12 month contract. Your base site can either be from the companies Bristol, Stevenage or Bolton office.  This role will be a hybrid position – 3 days per week onsite and 2 days remote.      Hourly Rate: £60 - £85 (Umbrella).      Contract Duration: 6 Months initially and then ongoing and long-term thereafter.   Missile Electronic Architect Job Description:   Electrical Architects/Engineers are involved in all aspects of missile development, from the early concept studies to series production and in-service support. It’s an excellent opportunity for someone wanting to build on their engineering experience. Responsibilities: You will be responsible for the electrical architecture and requirements for missiles and/or their associated launcher systems with duties including: Specifying/determining system electrical requirements interface definitions...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Feb 11, 2026  
Electrical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit an Electrical Systems Engineer / Architect subcontractor on an initial 12 month contract. Your base site can either be from the companies Bristol, Stevenage or Bolton office.  This role will be a hybrid position – 3 days per week onsite and 2 days remote.      Hourly Rate: £60 - £85 (Umbrella).      Contract Duration: 6 Months initially and then ongoing and long-term thereafter.   Missile Electronic Architect Job Description:   Electrical Architects/Engineers are involved in all aspects of missile development, from the early concept studies to series production and in-service support. It’s an excellent opportunity for someone wanting to build on their engineering experience. Responsibilities: You will be responsible for the electrical architecture and requirements for missiles and/or their associated launcher systems with duties including: Specifying/determining system electrical requirements interface definitions...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Mar 15, 2026  
IT Solution Architect
Introduction Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can offer a wide range of opportunities for personal fulfilment and career growth. We currently employ over 600 people across eight sites in the UK, and our specialisations include software engineering, underwater robotics, radars, AI, and armed forces training. What you will be part of: Explore a wealth of possibilities. Take on challenges, create smart inventions, and grow beyond. This is a place for curious minds, brave pioneers, and everyone in between. Together, we achieve the extraordinary, each bringing our unique perspectives. Your part matters. Saab is a leading defence and security company with an enduring mission, to help nations keep their people and...
IR35 Status:
Unknown Status

CV-Library Fareham, Hampshire Contractor
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